US1961567A - Fire extinguisher - Google Patents

Description

J. S. NELSON June 5, 1934.

FIRE EXTINGUISHER Filed April 7, 1932 WWW Patented June 5, 1934 I.

UNITED STATES PATENT OFFICE FIRE EXTINGUISHER Julius S. Nelson, San Jose, Calif.

Application April 7, 1932, Serial No. 603,806

3' 4 Claims (01. ice-#26) The present invention relates particularly to Surrounding the pin 7 and passing through the the grenade type of fire extinguisher wherein plate 1 are holes 9. the grenade is shattered by means rendered At 10 is shown a disc of fusible metal set operative by heat generated by the fire to be in recess 6 and secured in position by low temc extinguished. perature solder at 11. Mounted upon the upper 60,

In known devices of this type the grenades side of the disc are rods 12, one passing are mounted upon brackets or supports which through each hole 9, the several rods supporting are in turn mounted upon the wall of the room a horizontally disposed bar as 13. in which they are to be used, and their use is A metal housing is shown at 14, this housing highly objectionable because they do not lend being open at its lower end where it seats upon 55 themselves readily to the furnishing and decorathe seat 5 formed in plate 1. Within the contive schemes of the room. And, furthermore, tainer or housing is a glass grenade resting the means for mounting the grenades is of such upon the bar 13 and supported in a vertical poa nature that they cannot be readily placed sition by the walls of the housing. A leaf spring .15. where the releasing mechanism will be most is shown at 16 bearing against the grenade and 70 quickly acted upon by heat generated by a fire the top of the housing 14. in the room, nor where the liquid released can In positioning this device the parts are first be sprayed in the most efficient manner. assembled as above described, and the housing It is, therefore, an object of the invention to 14 is then thrust upwardly through an opening 20 provide a device of the character indicated so as 1'7 formed in the ceiling 18 of the room, in i5,

constructed that it may be readily positioned in which position it is held securely by fastenings 3. any room without noticeably interfering with If a fire occurs in the room in which the its decorative scheme, and capable of being device is placed the excessive heat generated worked in and utilized as an element in said thereby first becomes manifest along the ceil- .25. scheme. ing level, and consequently it will act almost 39 It is another object of the invention to provide immediately upon the solder 11, melting the a device of the character indicated so placed as same and permitting the bar 13 to drop. When to be promptly acted upon when the temperthe supporting bar 13 is released the spring ature of the air in the room rises beyond a pre- 16 throws the grenade down suddenly, causing determined point, and so disposed as to spray it to break upon the pin '7, whereupon its con- 85,

the fire extinguishing liquid most effectively. tents is released and sprayed out into the room It is still another object to provide a device through the perforations 2. of the character indicated so constructed and It may be readily understood from the forearranged as to obviate the necessity of providgoing that I have provided a highly eflicient and 5. ing hinged parts such as hammers etc., and one practical device, and the sole evidence of its 9Q 49 In the drawing: It is to be understood, of course, that while 95,

that will be economical to manufacture, of few presence in a room is the ornamental plate 1. parts, simple in form and construction, light in It occupies otherwise unused space between the weight, strong, durable, and highly efficient in ceiling joists, has no swinging parts to get out its practical application. of order, and is positive in action.

Figure 1 is a sectional view through a device I have herein shown and described but one spe embodying my invention in an operative cific embodiment of the invention, changes in position. form, construction, and method of assembly and Figure 2 is a bottom plan view of the same, operation may be made within the scope of the 4%? partly broken away. appended claims.

In the particular embodiment of the inven- I claim: tion herein disclosed, I show at 1 an ornamental 1. In combination, an apertured plate, an up- Dlate perforated as at 2 and rigidly mounted on standing breaker element mounted on the plate, the ce of a T0011! as all This plate has container supporting means disposed in an elean annular offset 4 formed therein to form a vated position relative to the plate and having 19,

seat 5, and the perforations 2 are disposed within parts extending downwardly through the plate, the field defi d y the Said Offset n t e 08 low temperature fusible means for securing the ter of the plate is formed a sha ow recess 6, support to the plate, a frangible container of r and upon the center of the part 6 is disposed fire extinguishing fluid mounted on the supportan up t n in pin 7 with a conical head as 8. ing means, and means for throwing the con- L10 tainer upon the breaker element upon the breaking down of the fusible means.

2. In a device of the character described, an apertured plate having an upstanding pin mounted thereon, an element mounted upon the under side thereof and secured thereto by means fusible at a low temperature, said element having parts extending upwardly through certain apertures in the plate, supporting means mounted on said plate and disposed in elevated relation to the plate, a frangible container of fire extinguishing fluid mounted on said supporting means, and means for throwing the container forcibly against the pin to break the, same upon breaking down of the fusible means.

3. In a device of the character described, a housing having an apertured end, an inwardly directed breaker element mounted on said end, a frangible container of fire extinguishing fluid disposed in the housing, releasable supporting means for the container disposed in the housing and passing through said end and secured to the outer side thereof by means fusible at a given low temperature, and resilient means inserted between the other end of the housing and the container whereby to throw the container against the breaker element when the supporting element is released.

4. In a device of the class described, an annular plate having apertures therein and provided with spaced peripherally disposed means for securing the same to a horizontal support, heat releasable means for normally supporting a frangible container of fire extinguishing material in elevated relation to the top of said plate, a breaker element carried by said plate, and means for throwing said container upon the breaker element to break the same when released to permit the passage of the fire extinguishing material through the openings.

JULIUS SIG. NELSON.

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